Chilian mill.



.v J. MOGONE.

OHILIAN MILL.

A'IPLIGATION FILED 11111.13. 1911.

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GHILIAN MILLL APPLICATION PIL-11D 11111.13. 1911.

1,008,046. 111161111111y Nov. 7, 1911.

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ALEXANDER J'. MGCONE, OF RENO, NEVADA.

CHILIAN MILL.

Specication of Letters Patent.

Patente-d Nov. 7, 1911.

Application filed January 13, 1911. Serial No. 602,379.

To all whom it may concern.'

Beit known that I, ALEXANDER J. MCCONE, a citizen of the United States,residing at Reno, in the county of Washoe and State of Nevada, haveinvented certain new and useful Improvements in Chilian Mills, of Whichthe following is a specification.

My invention relates to the class of Chilian-mills.

The object of my invention is to provide, by simple and eifectiveconnections, for the necessary vertical movement of the crushingi'ollers under Working conditions, independently of the driver and ofeach other; and also to provide, by a simple and effective constructionof the rollers themselves, for increased crushing Weight Without anincrease of bulk.

To these ends my invention consists in the novel construction andarrangement of parts which l shall hereinafter describe and claim,reference being had to the accompanying drawings, in Which Y Figure 1 isa vertical section of my mill. Fig. 2 is a plan of the same, partlybroken, and the feed trough and driving gears omitted. F ig. 3 is a sidevievv enlarged of the mounting connections for each roller, the yokebeing in section. Fig. 4 is a top view of the roller axle and yoke.

1 is the mill bottom With a central column 2 in which is keyed thenon-rotating shaft 3.

4 is the center cone, with face liner 5.

6 is the die, 7 the screens and 8 the launder.

9 is the driver mounted to ro-t-ate about the shaft 3, and driven fromabove through the gear 10.

11, in Fig. 1, is the feed trough and 12 are the feed pipes.

14 are the crushing rollers. I have shovvn three in the present case.Each roller has a tire 15 to run on the die 6. The means for mountingeach roller being the same, a description of one Will apply to all.

The driver 9 has made in the extremity of each of its arms a rectangularhole in which is fitted the upper end 16 of a correspondingly shapedpost'lt. This upper end 16 is of smaller cross section on one side thanthe post itself thus forming a shoulder at 17 which bears under theouter end of the driver arm. The end of the driver arm, which forms theouter Wall of the postreceiving hole is split through to said hole asshoivn vin Fig. 2 at 18; and bolts 19 are passed horizontally thro-ughthis end and lie in seats formed in said end and the adjacent Wall ofthe post. By tightening up these bolts the post is clamped securely inthe arm. The bolts by seating partly in the arm and partly in the postalso resist endvvise move- .ment of the post, but the upward thrustwhich is likely to be the most severe is effectually resisted by theshoulder 1 7. Thus the post is Well and rigidly secured and will resistany strain put upon it, more certainly than if it were merely bolted tothe arm.

2O is the roller spindleor axle, the outer end of which receives a nut21 which is covered by an oil guard 22. The inner end ofthe spindle oraxle 20 is formed or provided With a yoke 23 angularly shaped to embracewith a sliding fit three sides of the driver post 16. The extremities ofthe yoke are fitted with rolls 24 which lie upon the back or fourth sideof the post. In order to better resist any canting strain, th-e yokearms Widen to their extremities and carry three rolls 24, as seen inFig. 3. The effect of these connections is 4that each crushing roller 14can have its verticalA movement under Working conditions independentlyof the other rollers, and also independently of the driver, so that thestrains and stresses of one are not communicated to another, as in thosecases in Which the driver itself is intended to form part of thecrushing Weight. Each roller `rises vertically parallel to its post,Without tilting strain, its yoke sliding true upon the post, therebymaintaining the proper relative position of its tire and the die. Theconstruction is much simplified by having the yoke slide directly on thedriverpost, and by this reduction in the number of parts forming themounting connection, a certain amount of Weight is dispensed Wit-h WhichWould cause Wear in the journal. Also, as before noted, the post itselfis firmly secured to resist strains. The crushing rollers 14 are formedin tvvo sections meeting in their circumference, as seen in Fig. 1, onesect-ion having the hub over which the other fits; and the periphery ofthese sections are oppositely beveled to -their meeting line as shown.This provides for securing the tire 15, the inner surface of Which iscomplementally beveled, When the sections are clamped together, and thusavoids the use of independent Wedges. The sections of the rollers arehollovved out as shown and in the chamber thus formed is inserted a mass25, as shown in Fig. l, of lead or other relatively heavier metal,whereby the weight oi' the roller is increased without affecting itsbulk. The sect-ions or" the roller and the inserted mass or iilling 25are securely clamped together by means of sleeves 2G secured by screws27 to one section and receiving tapbolts QS from the other section. Thisprovides convenient means for separating the roller sections to insertthe filling and to clamp them together again to hold the tire.

`l-laving thus described my invention .what I claim as new and desire tosecure by Letters Patent isl. ln a Chilian-mill, the combination of adriver, posts of rectangular cross section secured at their upper endsto the drivei, crushing rollers, and a connection between each rollerand its post consisting of an axle on which the roller is mounted, saidaxle having at its inner end a rectangular yoke which embraces the threesides of the post with a sliding tit, and rolls carried by the yoke armsand bearing upon the fourth side ot the post.

2. In a Chilian-mill, the combination of a driver having an arm with arectangular hole from which the arm is split outwardly to its extremity,a post of rectangular cross section litted at. its upper end in the holein the driver arm, said post having near its upper end a shoulder whichbears against the underside of the arm, clamping bolts passing acrossthe split extremity of the driver arm and engaging also the wall of thepost, a crushing roll, and a connection between said crushing roll andthe post.

3. In a Chilian-mill, the combination of a driver having an arm with arectangular hole from which the arm is split outwardly to its extremity,a post of rectangular cross section fitted at its upper end in the holein the driver arm, said post having near its upper end a shoulder whichbears against the underside of the arm, clamping bolts passing acrossthe split extremity of the driver arm and engaging also the wall of thepost, a crushing roll, and a connection between said crushing roll andthe post consisting of an axle on which the roller is mounted, said axlehaving at its inner end a rectangular yoke which embraces the threesides of the post with a sliding tit, and rolls carried by the yoke armand bearing noon the fourth side of the post.

ln testimony whereof I have sign-ed my naine to this specification inthe presence ot two subscribing witnesses.

ALEXANDER J. MCCONE.

Witnesses H. F. Boori-I, D. B. R101-ninos.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

